// Copyright 2011 The Apache Software Foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package org.apache.tapestry5.csrfprotection.services;

import java.util.Collections;
import java.util.HashSet;
import java.util.Set;


/**
 * This service holds all pages that are protected by the @CsrfProtected annotation.
 * The CsrfProtectionClassTransformWorker fills this service at startup. 
 *
 */
public class CsrfProtectedPagesImpl implements CsrfProtectedPages{
	private final static Set<String> protectedPages = Collections.synchronizedSet(new HashSet<String>());
	private final static Set<String> unprotectedPages = Collections.synchronizedSet(new HashSet<String>());
	
	/**
	 * Adds the given page to the protected pages set.
	 */
	public void addPageName(String pageName) {
		protectedPages.add(pageName);
	}

	/**
	 * Checks if the given page is protected.
	 * @return true means page is protected
	 */
	public boolean isProtected(String pageName) {
		return protectedPages.contains(pageName);
	}

	/**
	 * Adds the given page to the unprotected pages set.
	 */
	public void addUnprotectedPageName(String pageName) {
		unprotectedPages.add(pageName);		
	}

	/**
	 * Checks if the given page is unprotected.
	 */
	public boolean isUnprotected(String pageName) {
		return unprotectedPages.contains(pageName);
	}
}
